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    • 8. 发明授权
    • Method for producing galvanized steel sheet
    • 镀锌钢板的生产方法
    • US5997664A
    • 1999-12-07
    • US870244
    • 1997-06-06
    • Kenji TaharaJunichi InagakiToyofumi WatanabeMasaaki Yamashita
    • Kenji TaharaJunichi InagakiToyofumi WatanabeMasaaki Yamashita
    • C21D8/04C23C2/02C21D11/00
    • C23C2/02C21D8/041C21D8/0478C21D8/0426C21D8/0436C21D8/0473
    • Method for producing a galvannealed steel sheet wherein a slab consisting essentially of C in an amount of 0.004 wt. % or less, N in an amount of 0.004 wt. % or less, Ti in an amount of 0.01 to 0.15 wt %, Si in an amount of 0.05 wt. % or less, Mn in an amount up to 2.5 wt. %, P in an amount up to 0.1 wt. %, S in an amount of 0.015 wt. % or less, sol. Al in an amount of 0.02 to 0.1 wt. % and the balance being Fe, is soaked for at least 30 minutes at a specified temperature (range). The soaked slab is hot rolled to produce a hot-rolled steel sheet which is coiled at a temperature of 500 to 700.degree. C. The coiled hot-rolled steel sheet is cold rolled at a reduction ratio of 60% or more to produce a cold-rolled steel sheet which is annealed at a temperature of from recrystallization temperature to Ac3 transformation temperature. Galvanizing the annealed cold-rolled steel sheet and then galvannealing at a temperature of 450 to 600.degree. C.
    • 合金化热浸镀锌钢板的制造方法,其中基本上由C组成的板坯的含量为0.004重量% %以下,N为0.004重量% %以下,Ti为0.01〜0.15重量%,Si为0.05重量%。 %以下,Mn为2.5重量%以下。 %,P量高达0.1wt。 %,S为0.015wt。 %以下,溶胶。 Al的量为0.02〜0.1wt。 %,余量为Fe,在规定温度(范围)下浸泡至少30分钟。 将该浸渍的板坯进行热轧,制成在500〜700℃的温度下卷取的热轧钢板。卷取的热轧钢板以60%以上的压下率进行冷轧以产生冷 在从再结晶温度至Ac3转变温度的温度下退火的钢卷钢板。 对退火的冷轧钢板进行镀锌,然后在450-600℃的温度下进行合金化。
    • 10. 发明授权
    • Organic composite coated steel plate
    • 有机复合涂层钢板
    • US5846660A
    • 1998-12-08
    • US779324
    • 1997-01-06
    • Kenichi SasakiYoshiharu SugimotoMasaaki Yamashita
    • Kenichi SasakiYoshiharu SugimotoMasaaki Yamashita
    • B05D7/00B32B27/38B21D39/00
    • B05D7/51Y10T428/12549Y10T428/12569Y10T428/12799Y10T428/31511
    • Disclosed is an organic-composite coated steel plate comprising a steel plate provided with a plated layer made of zinc or a zinc-base alloy, a chromate-treated layer formed on said plated layer with a deposition amount ranging from 1 to 200 g/m.sup.2 in terms of metal chromium, and a resin film formed on said chromate-treated layer with a thickness ranging from 0.1 to 5 .mu.m, wherein said resin film has (A) selected from the group consisting of a reaction product (I) between an ethylene-series ionomer resin and an epoxy-group containing compound, a mixture of an ethylene-series ionomer resin and an epoxy emulsion, a mixture of the reaction product (I) and an epoxy emulsion, and a mixture of the reaction product (I), an ethylene-series ionomer resin and an epoxy emulsion, in an amount of 60 to 99% by weight, and (B) fine silica particles in an amount of 1 to 40% by weight.
    • 本发明公开了一种有机复合涂层钢板,其特征在于,具有设置有由锌或锌基合金构成的镀层的钢板,形成在所述镀层上的铬酸盐处理层,其沉积量为1〜200g / m 2 以及在所述铬酸盐处理层上形成的厚度为0.1-5μm的树脂膜,其中所述树脂膜具有(A)选自由以下组成的组中的反应产物(I):反应产物 乙烯系离聚物树脂和含环氧基的化合物,乙烯系离聚物树脂和环氧乳液的混合物,反应产物(I)和环氧乳液的混合物,以及反应产物(I ),乙烯系离聚物树脂和环氧乳液,其量为60〜99重量%,(B)1〜40重量%的二氧化硅微粒。